(n) :
a point, near, or within a body through which its weight can be assumed to act when considering forces on the body and its motion under gravity. This coincides with the centre of mass in a uniformgravitationalfield; (as a metaphor) any pivotal or central idea or group
(n) :
a point, near, or within a body through which its weight can be assumed to act when considering forces on the body and its motion under gravity. This coincides with the centre of mass in a uniformgravitationalfield; (as a metaphor) any pivotal or central idea or group